In a swimming race, Miho swam 50 m in 25 s. What was Miho’s average speed in the race?

Does masterbation affect height growth or loss of growth hormone?

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?